Assuming your current attic insulation is made from fiberglass and has a value of r 13 you d have to add roughly 10 inches of additional fiberglass to hit r 38.
Cellulose versus fiberglass attic insulation.
Cellulose has 38 better air infiltration than fiberglass.
Fiberglass is a suspected carcinogen.
Sources many fiberglass installers fluff the fiber with extra air so you don t get as much insulation as you re supposed to.
Cellulose forms a dense continuous mat of insulation in your attic.
This keeps the air from moving within the insulation and from penetrations between the air conditioned space and the attic.
When using cellulose blown in dry insulation it requires a machine to achieve its purpose and a training session from wherever you rent the blower from.
Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.
Attic insulation elite clean and restoration offers removal and installation of fiberglass and cellulose insulation both of which have great r value.
Or 7 inches of cellulose.
Fiberglass fibers may become airborne which can be considered a pollutant.
Blown cellulose is typically the preferred choice of insulation for attics.
Both fibreglass and cellulose are the two most inexpensive insulation products that you could use.
Fibreglass is perhaps the most common product available in the market for insulation outpacing its close competitor cellulose by 50 1.
Cellulose is more difficult to cheat than fiberglass.
Fiberglass insulation is the easiest insulation product on the market to install and if installed correctly the most effective product on the market for home attic insulation.
Cellulose insulation is considered a greener material than fiberglass.
It is made from paper that has a minimum of 85 recycled content such as newspaper.
The higher the r value the greater the insulations performance.
You can get to the same place with either material.
R value measures how well certain building insulation materials can resist heat.